Short-Circuit To Ground

Checking Lock-up Solenoid SL
- Ignition ON.
- Move gear selector to position P.
- Activate solenoid SL. Read off the solenoid status. The status can alternate between OFF/ON.
- Does the status alternate between OFF/ON?

Yes:
- Proceed to: Intermittent Fault section below.

No:
- Proceed to: Connecting The Test Box section below.





Connecting The Test Box
- Ignition OFF.
- Connect the test box and check ground terminals.
- Proceed to: Checking Resistance In Solenoid SL Circuit section below.





Checking Resistance In Solenoid SL Circuit
- Ignition OFF.
- Transmission control module (TCM) disconnected.
- Connect an ohmmeter between # 2 and # 1 on test box.
- The ohmmeter should read 12-18 Ohms.

If reading is OK:
- Proceed to: Checking The Transmission Control Module section below.

If reading is incorrect:
- Proceed to: Checking Signal Cable Resistance To Ground In The Transmission section below.





Checking The Transmission Control Module
- Ignition OFF.
- Reconnect the connectors, reinstall components etc.
- Ignition ON.
- Move gear selector to position P.
- Activate solenoid SL. Read off the solenoid status. The status should alternate between OFF/ON.
- Does the status alternate between OFF/ON?

Yes:
- Proceed to: Fault-tracing Information section below.

No:
- Proceed to: Replacing Component section below.

Fault-tracing Information
- Fault-tracing indicates that the fault is no longer present.
- Fault corrected.





Replacing Component
- Ignition OFF.
- Try a new transmission control module.
- Proceed to: Verification section below.





Checking Signal Cable Resistance To Ground In The Transmission
- Ignition OFF.
- Raise the car to access the transmission.
- Carefully clean round connector D.
- Disconnect transmission connector D.
- Connect an ohmmeter between transmission connector terminal 3 (transmission side) and the transmission housing.
- The ohmmeter should read approx. 10-15 Ohms.

It reading is OK:
- Proceed to: Checking For A Short-circuit section below.

It reading is incorrect:
- Proceed to: Checking Resistance In Lock-up Solenoid SL section below.





Checking For A Short-circuit
- Check cable between transmission connector terminal 3 and transmission control module # B2 for a short- circuit to ground.
- Proceed to: Verification section below.





Checking Resistance In Lock-up Solenoid SL
- Ignition OFF.
- Open the control system.
- Disconnect solenoid SL.
- Connect an ohmmeter between the pin on solenoid SL and the transmission housing.
- The ohmmeter should read approx. 12-18 Ohms.

If reading is OK:
- Proceed to: Checking For A Short-circuit section below.

If reading is incorrect:
- Proceed to: Replacing Component section below.





Checking For A Short-circuit
- Check cable between solenoid SL and transmission connector D terminal 3 for a short-circuit to ground.
- Proceed to: Verification section below.

Replacing Component
- Try a new solenoid SL.
- Proceed to: Verification section below.





Verification
After repairs have been completed they must be verified as follows to ensure that the fault has been eliminated:

- Ignition OFF.
- Move gear selector to position P.

- Activate solenoid SL. Read off the solenoid status. The status should alternate between OFF/ON.
- Does the status alternate between OFF/ON?

Yes:
- Fault corrected.

No:
- Proceed to: Fault-tracing Information section below.

Fault-tracing Information
The verification result shows that the fault persists.

- Do you want to exit fault-tracing?

Yes:
- Fault not corrected.

No:
- Proceed to: Checking Lock-up Solenoid SL section above.





Intermittent Fault
- Check cable between solenoid SL in transmission and transmission control module # 2 for an intermittent short-circuit to ground.
- Proceed to: Fault-tracing Information section below.

Fault-tracing Information
For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.

- Do you want to repeat fault-tracing?

Yes:
- Proceed to: Checking Lock-up Solenoid SL section above.

No:
- Operation done.